EPA-106-FB11-03-A201

106

5,080 千元

溫室氣體減緩宣導與調適

2017/05/08

2017/12/31

蘇富榮

環管處

張文菖

環興科技股份有限公司

國際性議題

溫室氣體、廢棄物部門、國家清冊報告、本土化參數、減量效益

Greenhouse gas, waste sector, national inventory report (NIR), local emission parameter, mitigation benefits

簡誌良

02-27691366#20966

clchien@mail.sinotech-eng.com

本計畫依據IPCC 2006國家溫室氣體清冊指南，統計更新廢棄物部門(Waste Sector)溫室氣體排放清冊，並分析國際間最新提交之國家清冊報告(National Inventory Report, NIR)，比較廢棄物部門溫室氣體排放統計方法與差異，掌握國際最新清冊統計、排放趨勢與清冊審議重點。並回顧歐盟循環經濟政策對溫室氣體減量目標的設定策略及評估方案，作為未來廢棄物管理政策研擬參考。 訪查廢棄物掩埋、污廢水處理場廠，評估掩埋場活化(Landfill mining)甲烷減排量，估算生活污水廠、事業廢水廠沼氣回收再利用(Biogas recovery)甲烷減排效益，評估沼氣回收效益與實施可行性；延續前期計畫，實際量測事業廢水處理廠溫室氣體排放量，累積實測數據，持續建立本土排放係數(Country-specific emission factors)。本計畫進一步精進生活污水甲烷、氧化亞氮，及事業廢水甲烷排放估算，檢討統計方法、參數值引用合理性，估算精進後溫室氣體減排幅度。 辦理3場次專家會議，確認前述掩埋場活化、污廢水廠甲烷回收、事業廢水廠量測建立本土排放係數等之調查檢討、評估結果，及可能減排效益。以高斯法、蒙地卡羅法模擬計算2015年部門排放量不確定性(Uncertainty)，分析近三年排放估算不確定性之改善與演進。並配合環保署國家審議機制推動，提報相關統計結果至清冊登錄平台。協助編撰環境部門溫室氣體排放管制行動方案。製作廢棄物部門溫室氣氣體排放清冊文宣說帖。 依2015年清冊數據統計更新，部門歷年排放於1996年最大，2000年後遞減。2010年前以掩埋排放為主，之後污廢水排放佔比持續高於掩埋排放。近10年掩埋排放顯著下降，污水排放漸減，事業廢水漸增，至2015年部門排放前三大分別為生活污水、事業廢水、掩埋排放，共佔96.5%。2015年部門排放量為4,108.8千公噸二氧化碳當量；排放源比例，掩埋佔27.7%，堆肥佔0.9%，焚化佔2.6%，生活污水佔39.1%，事業廢水佔29.6%；排放氣體比例，甲烷佔88.7%，氧化亞氮約8.8%，二氧化碳約2.5%；排放量相較於2005年減少53%，較2014年減少5.8%。

溫室氣體、廢棄物部門、國家清冊報告、本土化參數、減量效益

國家環境相關清冊數據統計更新與本土化參數建立專案工作計畫-正式報告.pdf

43MB

正式報告

2018/5/1 上午 12:00:00

This project has compiled and improved the Taiwan National Greenhouse Gas Inventory of Waste Sector from 1990 to 2015 using methodologies consistent with those recommended in the 2006 Intergovernmental Panel on Climate Change Guidelines for National Greenhouse Gas Inventories (IPCC 2006 Guidelines). The methodologies for estimating greenhouse gas (GHG) emissions from the Waste Sector described in the National Inventory Report submitted by the Annex I parties in 2017 have been reviewed and analyzed to understand and identify the latest international trends, emission trends, and focal points of inventory review reports. The European policies towards a circular economy including the strategies and evaluation of achieving GHG emission reduction targets were reviewed for better waste management practices. The following efforts were made to identify the benefits of GHG mitigation strategies. Solid waste disposal sites were visited to study the effects of landfill mining operation on reducing CH4 emissions. Domestic and industrial wastewater treatment plants were also visited to identify the benefits of biogas recovery for CH4 emission reduction as well as economic benefits analysis and feasibility study. On-site GHG emissions of industrial wastewater treatment plants have been measured at the second phase of the development of country-specific emission factors. In addition, the methodologies with a reasonable choice of emission parameters for estimating CH4 and N2O emissions from domestic and industrial wastewater treatment and CH4 emissions from industrial wastewater treatment were both studied. The differences in GHG emissions between before and after improving the methodologies were also compared. Concrete conclusion and suggestion with respect to the survey results and mitigation benefits of landing mining, biogas recovery from wastewater treatment plants, and development of country-specific emission factors for industrial wastewater treatment plant have been made after 3 review meetings with the experts. Both Approach 1 (propagation of error) and Approach 2 (Monte Carlo method) were used for the uncertainty analysis of emission estimates in 2015. The level and trend uncertainty from 2013 to 2015 are shown to demonstrate the history of inventory improvement. The Taiwan National Greenhouse Gas Inventory of Waste Sector from 1990 to 2015 has been compiled and submitted by the inventory review process. The GHG reduction action plan for the environment-related sector has been developed. Finally, the promotion materials of the GHG inventory of waste sector were published. The changes in greenhouse gas emissions from the waste sector show that emissions were the highest in 1996 and there was a reduction trend since 2000. The largest contributor to the emissions by category was changed from solid waste disposal to wastewater treatment since 2010. Over the past 10 years, emissions have decreased substantially and gradually from solid waste disposal and domestic wastewater treatment, respectively. However, emissions from industrial wastewater treatment have increased. In 2015, the largest three contributors accounting for 96.5% were domestic wastewater treatment, industrial wastewater treatment, and solid waste disposal. Emissions from the waste sector resulted in 4,108.8 kt-CO2 eq. Among the waste sector emissions in 2015, the largest contributor was domestic wastewater treatment accounting for 39.1%, followed by industrial wastewater treatment accounting for 29.6%, solid waste disposal accounting for 27.7%, incineration of waste accounting for 2.6%, and biological treatment of waste accounting for 0.9%. Breakdown of emissions in 2015 by gas shows that the largest contributor to the emissions is CH4 accounting for 88.7%, followed by N2O accounting for 8.8%, and CO2 accounting for 2.5%. The emissions from this sector had decreased by 53% compared with 2005 levels and decreased by 5.8% compared with 2014 levels.

Greenhouse gas, waste sector, national inventory report (NIR), local emission parameter, mitigation benefits